Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/33507
標題: 台灣集水區土壤沖蝕推估指標模式之建立
Development of Soil Erosion Index Method in Taiwan Watershed
作者: 簡如宏
Chien, Seasir , Ju-hong
關鍵字: erosion;沖蝕;index method;index factor;指標模式;指標因子
出版社: 水土保持學類
摘要: 
摘要在面對集水區土壤沖蝕推估時,由於影響因子眾多且複雜,因此如何
以全面性及便利性為考量來從事此一工作,一直是各專家及學者所熱切期
盼的。今日本研究即以此為標的,並提出此一土壤沖蝕推估模式,期以簡
單而便捷之方法來估算集水區或坡地開發時土壤沖蝕量之估算。本模式採
用-土壤(SI)、降雨(WI)、逕流(RI)、坡度(TI)、地表覆蓋(CI)及土地利
用(UI)等六個指標因子,所建立之集水區泥砂沖蝕推估模式如下。YI =
SI + WI + RI + TI + CI + UI SY = 0.004*YI^2.7669其中YI = 總合指
標值SY = 為土壤沖蝕量(ton/ha)本指標法,為針對集水區土壤沖蝕推估
方法所建立之新模式;模式建立係採用小型試區實測土壤沖蝕量作為基礎
,再經由大型集水區之驗証,故具有相當之合理性。為建立簡易且本土化
之集水區土壤沖蝕推估模式,本模式之各項因子皆可直接由水文、地文及
土地利用調查等基本資料來加以轉換得之,無需使用複雜而繁瑣之系統來
加以求算土壤沖蝕量。

ABSTRACTThe influence factors of soil erosion are complex and
difficult to understand.Numerous engineers and scientists have
paid attention to estimate the soil erosion and hope to yield a
convenient and comprehensive method.The goal of this research ,
therefore , provides the simplest model of watershed''s erosion
to evaluate the soil erosion which is developing in watershed or
hillslope.This includes six index factors , that are soil index
(SI) , weather index (WI) , runoff index (RI) , topography index
(TI) , cover index (CI) and land use index (UI). The erosion
index model is calculated as:YI = SI + WI + RI + TI + CI + UISY
= 0.004*YI^2.7669where YI is the amount of indices , and SY is
total soil erosion (ton/ha).This new index model focus as on the
evaluation of soil erosion in watershed.Initially , the model
was built by the data of experimental plot and then identified
by the field data of reservoir watersheds. As the result , the
index model is adequate tool for soil erosion estimate in
Taiwan.For the simplify evaluation index model , all the index
factors can be directly obtained by hydrological data ,
topographical data and land useinvestigation without using the
complex system.
URI: http://hdl.handle.net/11455/33507
Appears in Collections:水土保持學系

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